CGA320 CO2 cylinder valve,gas valve,valve,cylinder valve,CO2 valve,carbon dioxide valve Detailed Product Description CGA320 CO2 cylinder valve,gas valve,valve,cylinder valve,CO2 valve,carbon ... )Temperature or pressure of safe apparatus(Mpa)Tread connected to cylinder(mm)CGA320flapper-type CO2 cylinder valveCO2154CGA32021±1.5